EP 1508691 A1 20050223 - Horizontal axis wind turbine and method for measuring upflow angle
Title (en)
Horizontal axis wind turbine and method for measuring upflow angle
Title (de)
Windkraftanlage mit waagerechter Welle und Verfahren zur Messung des Aufwärtsströmungswinkels
Title (fr)
Eolienne à axe horizontal et procédé pour mesurer l'angle de flux ascendant
Publication
Application
Priority
JP 2003291540 A 20030811
Abstract (en)
A horizontal axis wind turbine (1) comprises the following components: a horizontal plate (7) disposed on the upwind side of a rotational central portion of a rotor (4); a first anemometer (6) disposed at an upper position of the upwind side of the horizontal plate (7); a second anemometer (8) disposed at a lower position of the horizontal plate (7); and an upflow angle measuring section (100) for measuring an upflow angle based on a wind speed difference or a wind speed ratio obtained from wind speeds measured by the first anemometer (6) and the second anemometer (8). <IMAGE>
IPC 1-7
IPC 8 full level
F03D 1/06 (2006.01); F03D 11/00 (2006.01); F03D 11/04 (2006.01); G01P 5/06 (2006.01); G01P 13/00 (2006.01); G01P 13/02 (2006.01)
CPC (source: EP US)
F03D 17/00 (2016.05 - EP US); G01P 5/06 (2013.01 - EP US); G01P 13/02 (2013.01 - EP US); F05B 2260/845 (2013.01 - EP US); F05B 2270/32 (2013.01 - EP US); F05B 2270/321 (2013.01 - EP US); Y02E 10/72 (2013.01 - EP US)
Citation (search report)
- [E] EP 1460266 A2 20040922 - MITSUBISHI ELECTRIC CORP [JP]
- [A] US 5646343 A 19970708 - PRITCHARD DECLAN NIGEL [SA]
- [A] FOLKERTS L ET AL: "OFFSHORE WAKE MEASUREMENTS USING A SODAR", EWEA SPECIAL TOPIC CONFERENCE ON OFFSHORE WIND ENERGY, XX, XX, 10 December 2001 (2001-12-10), pages 1 - 3, XP001127011
- [A] MELLINGHOFF H ET AL: "SODAR MEASUREMENTS IN COMPLEX TERRAIN SODAR WINDMESSUNGEN IN KOMPLEXEM GELAENDE", DEWI MAGAZIN, DEUTSCHES WINDENERGIE INSTITUT, WILHELMSHAVEN, DE, no. 17, August 2000 (2000-08-01), pages 16,18 - 22,24, XP001116121, ISSN: 0946-1787
Designated contracting state (EPC)
DE ES IT
DOCDB simple family (publication)
EP 1508691 A1 20050223; EP 1508691 B1 20060802; DE 602004001726 D1 20060914; DE 602004001726 T2 20070802; ES 2270241 T3 20070401; JP 2005061963 A 20050310; JP 4434661 B2 20100317; US 2005034516 A1 20050217; US 6993965 B2 20060207
DOCDB simple family (application)
EP 04018617 A 20040805; DE 602004001726 T 20040805; ES 04018617 T 20040805; JP 2003291540 A 20030811; US 91438104 A 20040809